Means for nebulizing fluids



Sept. 15, 1931.

c. 1.. RILEY MEANS FOR NEBULIZING FLUIDS Filed April 28, 1928 INVENTOR CHAMPLAIN L. RILEY i 7:2}; aizarrzqya Patented Sept. 193] PATENT. OFFICE UNITED STATES.

CHAMPLAIN L. arra or NORTH PLAINFIELD, new JERSEY MEAlN'S FOR NEBULIZING FLUIDS Application filed April 28,

This invention relates to the art of neb ulizing or atom'izing liquids.

In certainindustries it is found'desirable to atomize two streams of liquid simultane- 1 ously soas to permit interaction of the constituents in the resulting nebulized masses. This interaction maybe a mingling of the dry' products remain1ng=after evaporation of the volatile constitutents of the streams or w av ' e a, mingling of the volatile constitutents themselves or of the drya'nd thevolatile. It may i also be a chemical interaction between the volatile constitutents or between the volatile constituents of one stream and the solid constituents of another. In certain instances, the evaporation of one stream is used to cool the other-stream.

An example is in the manufacture of powdered soap Where a powdered silicate or k a powdered soda-ash is to be mixed with the soap without combining the soap and the silicate or soda-ash in' liqu'id form. -By the si-- multaneous nebulization' of asolution of the silicate or soda-ash and a stream of the liquid soap, the mingling of the dry solid constitutents is efiectedand the liquld .con stitutents are evaporated.

Another example is in the preparatlon of a solid granular tar product. Such a product may be obtained by the simultaneous nebulization of a stream of hot tar and a stream of. cold water in close proximity so that the resulting nebulized masses may be intimately intermixed.

It is an'object of this invention to provide an apparatus by which the simultaneous atomization or nebulization ofiseparate streams of liquid may be effected and by which 118b,".

ulized masses may be created in such proximity as to permit interaction, chemical or otherwise, between the constituents of these masses.

It is also an object to provide an apparatus which, being capable of effecting the above object, will be of simple construction, easily assembled and efficient in use.

In the preferred embodiment of the invention, a centrifugal spray bowl is provided in which there is space for, radial flow of two separate streams and in which separate cone 1928. Serial No. 273,658.

2, by means of a bolt 3: The bolt 3 extends through a washer 3' and a ball 4 which forms part of the bowl 2, the washer engaging the ball on the "underside and the bolt being threaded into the spindle 1 to secure the bowl for rotation with the spindle.

The bowl 2 further consists of a radialplate 7 having aseries of holes 8 therethrough near the ball 4 and spaced on a circle concentric with the spindle. Radially beyondthis the upper face of the plate 7 and incline inwardly." At the outer end of the .plate 7 are flanges forming a peripheral bafiie 9 extending above and below the plate7. The inner faces of this baflle are inclined outwardly bothabove and below the plate. The upper and lower edges of thisbafile 9 form the dis- 'charge lips.

" series of holes is a mid-baflle 6 upstandin on A rin 12-is secured to the upper race of plate 7 by bolts 14. The outer face of this ring is inclined to conformto the inclination of the upper part of bafile 9 and the" inner face is oppositely inclined, as shown in Fig. 2, substantially parallel to baflie 6.- A bead 15, on'the ring 12 fits in a recess in the plate 7.

At spaced points in the ringil2 areangled passages 13 leading from the space between the conical bafile 6 and the ring, first radially outward and then upward and outward, ending inports of relativelysmall radial dimension as compared with the arcuate dimension.

These passages preferably are formed as recesses in the outersurface of the ring 12, as shown, so that the baflie 9 forms one wall of the flow passage.

Above the spray bowl and concentric with the spindle are three sleeves, the inner one 5 12 so as to provide a channel 17 opening into the space between the bafile and the ring. These channels are in communication with separate sources of liquid supply.

In operation, the spindle is rotated at high speed and liquid is supplied to the separate channels 16 and 17. The stream from channel 17 is deflected outward by baflle 6 and is caused to rotate, the centrifugal force generated thereby causing the liquid to flow with some force into passages 13 where further centrifugal force is generated, causing the discharge ofthe liquid in a fine mist or nebulized mass from the discharge lip.

The liquid delivered from channel 16 is received in the space between the spindle and a baifle 6 where it is caused to rotate. Until it attains substantially the speed of the bowl itself, no liquid passes through openings 8 but upon attaining it, the liquid passes through and is impelled radially along the under face of plate 7 against bafiie 9 which deflects it downward until it is discharged from the lip as a mist or spray forming another nebulized mass.

Thus two nebulized masses are created simultaneously and in close proximity. The solid constituents of the two masses, in dry condition, are free to mix. So also with the volatile constituents and, depending upon the liquids introduced, various interactions may occur between the volatile and solid constituents.

I claim 1. Apparatus comprising a rotatable plate, a peripheral baffle thereon, a mid-bafile on one side of the plate, the plate being ported between its center and the mid-baflie, and fluid supply means for delivering separate streams of fluid to said plate, one between the center and the mid-baflle, the other between the mid-baflle and the peripheral baflie.

2. A centrifugal nebulizer comprising a rotatable plate, a series of ports near the center thereof, a conical baflie on one face thereof radially beyond the ports, a peripheral ring on one side of the plate having passages therethrough, and a peripheral baflie on the other side of the plate.

3. A centrifugal nebulizer comprising a web, a peripheral, axially-extending bafiie affordinga discharge lip, and a ring resting against the inner face of said baflle and the face of said web adjacent the bafiie, said ring having recesses, from its faces adjacent said web and baflle, providing flow passages from the inner region of said web toward said dis charge lip.

4. A centrifugal nebulizer comprising a web, a series of ports therethrough, means at the periphery of said web forming discharge lips on opposite sides thereof, and a means on one side of said web for preventing radial flow of liquid from the region of said ports to the discharge lip on that side of the web.

5. A centrifugal nebulizer comprising a web, a series of ports therethrough, a peripheral bafile extending axially on both sides of said web and means on one side of the web for preventing radial flow of liquid on that side of the web from the region of said ports to the peripheral baflle.

6. A centrifugal nebulizer comprising a rotor having discharge lips in spaced planes, means for delivering separate fluid streams to one side of said rotor and means for passing one of said streams to the opposite side of the rotor, whereby said streams are fed separatelyby centrifugal impulsion to said lips for dispersal as nebulized masses.

7. A centrifugal nebulizing rotor having discharge lips in spaced planes in combination with means for receiving separate bodies of liquid on one side of said rotor and means for centrifugally impelling said streams separately. one to each of said discharge lips, whereby said bodies of liquid are dispersed I separately in atomized form.

8. A centrifugal nebulizing rotor having a web with discharge lips on the o posite faces of said web incombination wit means for delivering to said opposite faces separate bodies of liquid to be nebulized for dispersal in adjacent planes, whereby-they may commingle in nebulized form.

In testimony whereof I have signed my name to this specification.

CHAMPLAIN L. RILEY. 

